Brake-applying means



March l2, 1929. 1... E. .LA BRIE v 1.3RAKE APPLYING MEANS F-iled Dec. 3, 19.27'

erating means which is l opposite Patented Mar. 12, 1929.

lUNITED. vSTA TES l 1,705,191 PATENT oFFlcE.

END, INDIANA, ASSIGNOR TO BENDIX BRAKE COM- INDIANA, ACORPORATION 0F ILLINOIS.

BRAKE-APPLYING MEANS.

Application led December 3, 19.27. Serial No. 237,376.

This invention relates to lustrated as embodied in brakes,'andis ilnovel operating means for a front wheel automobile brake.

An object of the invention compensate for the'wear of is to provide opreadily adjustable to th e. brakeB In one desirable arrangement the operating means includes two steel stampings,

parts, which may be if desired, and one of which is fixed on the shaft. and formed with a flange facing toward the shaft and curved about the axis of the shaft, while the vided with wedge recesses parts which are wedged flange to lock the two parts together.

serves as an operating lever ofthe two parts other one is profor rollers or other against the curved One for the brake applying shaftl and by the above described arrangement it can be moved angularly with respect to the shaft in one direction to take up` for the wear of the brake, but it is prevented from movement in the other direction with respect to the shaft, by the wedging of the above described parts, so

that when moved in that direction it operates the shaft.

Preferably, a novel plate end of the shaft in such a the ends of the is secured on the manner as to block recess and to confine the wedged parts in their respective recesses. In the illustrative embodiment this plate co-opcrates with the part which is fixed to the shaft, the plate and said parts blocking the ends of the recesses.

The above and other objects and features of the invention, desirable structural details,

including various novel and will be app-arent from the following description of one illustrative embodiment shown in the accompan ing drawing, in which:

Figure 1; is a partial through the upper portion automobile brake,` showing vertical section of a front wheel the novel operatn ing means partly in rear elevation and partly in vertical section; and

Figure 2 is a side elevation of the operating means looking 1n the direction of the arrows 2-2 of Figure 1.

In the illustrated arrangement, the brake includes a rotatable drum to the drum 10 by shown) operated by a cam s 12 within which is arranged the friction means and at the open side of which able stationary support such plate 14. rlhe friction means 'i2 of the brake, there is a suit- (Y 12 .-is applied any suitable means (not haft 16 journaled f Aa part or device 22 having a as a backin in a bearing provided by tubular portions, drawn in opposite directions, on two stampings 18 and 2O welded or otherwise secured to opposite sides of the backing plate 14. The present invention relates to the means for op-l erating the shaft 16 or its equivalent.

The shaft 16 isl preferably provided with about the axis of the shaft 16, the device 22 being secured to the shaft in any desired manner, as for example by means of a key or pin 26. A stamped part 28 forming on operating lever for the shaft'is sleeved on the shaft immediately beyond the device 22, and is shown as formed in its outer edge with wedged recesses 3() for small rollers or equivalent parts 32 which are wedged against the flange' 24 by movement of the arm or lever 28 in a counterclockwise direction in Figure 2. The parts 32 are confined in the recesses 30 by the device 22 which blocks the left ends of the recesses in Figures 1, together with a plate 34 in the form of a stamping having flanges v36 engaging opposite sides of the lever 28. The plate 34 is slipped on areduced diameter portion of the shaft 16 which part 44, which may be a spherical ball intel'A grally formed on the end of a lever fulcrumed on the front axle.

It will be seen that the lever 28 may readily A be turned in a clockwise direction in Figure 2 with respect to the shaft 16 and part 22 to adjust the lever to compensate for wear of the brake,ibut that it cannot be turned on the shaft in a counterelockwise direction, on account of the wed ging or gripping of the parts 32 against the dange 24, that is, the arm 28 may be adjusted on the shaft in abralre releasing direction, shaft in a brake applying direction.

While one illustrative embodiment has been described in detail, it is not my intention to limit the scope of the invention to that particular embodiment or otherwise than by the terms of the appended claims.

l claim:

l. perating means comprising, in combilange 24 curved but cannot be turned on the plate secured on the end of the shaft and conining said parts in their respective recesses.

2, Operating means comprising, in combination with a shaft, a device fixed on the shaft and formed with a flange curved about the axis of the shaft, an arm on the shaft having a portion fitting Within said iange and formed with wedge recesses, and parts in said recesses and wedged against said fiange to connect the'arm operatively with said shaft, together with a part secured to the end of the shaft and blocking the ends of the recesses to confine said parts in their respective recesses.A

3. Operating means comprising, in combination, a shaft having at its end a threaded portion of reduced diameter, a device secured l on the part of greater diameter adjacent the end ofthe shaft, an arm freely sleeved on the part of greater diameter beside said-device. means adjustably connecting the arm and said device, a plate holding said means in place and sleeved on the part Aof reduced .Y diameter, and a nut threaded on the end of the shaft and holding said plate, In testimony whereof, I have hereunto signed my name.

LUDGER E. LA BRIE. 

